java connection throught proxies

[Edson Alves Pereira]

        Does anyone here knows if Java-1.4.2 can make Network connections
throught web-proxies? I�m using xercer to validade a xml file and i got

java.net.ConnectException: Connection timed out: connect


        This isn�t a tomcat matter, but maybe somebody could tell how to
make my java environment understand M$ proxies.

        Regards,
        Edson